Title :
Flexible Polymer Photovoltaic Devices Prepared With Inverted Structures on Metal Foils
Author :
Chen, Fang-Chung ; Wu, Jyh-Lih ; Lee, Chia-Ling ; Huang, Wen-Che ; Chen, Huang-Ming Philips ; Chen, Wen-Chang
Author_Institution :
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu
fDate :
7/1/2009 12:00:00 AM
Abstract :
We have prepared top-illuminated organic photovoltaic devices on stainless-steel substrates, using molybdenum trioxide/indium tin oxide as the transparent top electrode. Incorporating an Al counter electrode grid having a shadow fraction of 10% effectively reduced the device resistance, thereby enhancing the power conversion efficiency to ca. 3%. This device exhibited superior mechanical flexibility. The inverted device architecture eliminated the need to use low-work-function metals, which are air sensitive and easily oxidized, thereby improving the air stability of the flexible devices.
Keywords :
aluminium; flexible electronics; foils; indium compounds; metallic thin films; molybdenum compounds; photovoltaic cells; polymers; stability; transparency; Al counter electrode grid; FeCCrJk; MoO3-ITO-Al; air stability; device resistance; flexible polymer photovoltaic device; indium tin oxide electrode; inverted structure; mechanical flexibility; metal foil; molybdenum trioxide electrode; power conversion efficiency; shadow fraction; stainless-steel substrate; top-illuminated organic photovoltaic device; transparent top electrode; Energy resources; flexible structures; photovoltaic cells; polymers;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2009.2022345
